Cork-holding bottle-neck



(No Model.) T. T. GRAHAM & J. MONHEIMER.

CORK HOLDING BOTTLE NECK.

Patented Feb.25,1890.

films-Alma;

WITNESSES r W mgnlzLw Cf g UNITED STATES PATENT OFFICE.

THOMAS T. GRAHAM AND JOHN MONI-IEIMER, OF LOUISVILLE, KENTUCKY.

CORK-HOLDING BOTTLE-NECK.-

SPECIFIGATION forming part of Letters Patent No. 422,127, dated February25, 1890. Application filed October 2, 1889. Serial No. 325,791. (Nomodel.)

To all whom it may concern:

Be it known thatwe, THOMAS T. GRAHAM and JOHN MONHEIMER, citizens of theUnited States, residing at Louisville, in the county of Jefferson andState of Kentucky, have invented certain new and useful Improvements inSelf-Acting Cork-Holders or Cork-Holding Bottle-Necks; and we do herebydeclare the following to be a f ul1,'clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

Our invention relates to devices for holding cork stoppers for bottlesin place so that they cannot be forced out by the pressure of thecontents of the bottles. It is especially appli cable to bottlesdesigned to hold effervescent liquids.

Our invention consists in a peculiar construction of the inside of themouth and upper part of the neck of a bottle, whereby, in forming thebottle, rings shaped in cross-section like a wedge with the basedownward and the edgesof the bases rounded are made one below the other,encircling the inside wall of the neck. This construction is illustratedin the accompanying drawing, in which B represents the neck of a bottle,0 the outside ring around the mouth, and A a cork stopper.

0 represents the aperture of the mouth, 0 and c the wedge-shaped ringsencircling the inside walls of the mouth, and c the choke in the neck.

The figure in which these parts are shown is a sectional view of theneck and upper part of a bottle made according to our invention, with acork stopper in position.

WVhen a cork is forced into the mouth of a bottle having the insidewalls of the mouth shaped according to our invention and reaches thechoke in the neck, the compression caused by the narrowing of the neckcauses the cork to swell above and bed itself in the indentations formedby the bases of the wedge-shaped rings, so that when pressure is appliedfrom below the cork is held firmly against it. In making these rings theedges of the shoulders formed by their bases are slightly rounded, sothat the cork will not tear when extracted.

Having thus described our invention, we 'c1ai1n A bottle-neck having theinterior of its mouth portion provided with a series of parallelwedge-shaped circumferential rings with their bases downward, the edgesof said bases being rounded, as set forth.

In testimony whereof we affix our signatures in presence of twowitnesses.

THOMAS T. GRAHAM. JOHN MONHEIMER.

Vitnesses:

T. W. SPINDLE, L. G. DAVIS.

